Transmission Method, Related Equipment and System for Terminal Self-Interference

ABSTRACT

Embodiments of the present disclosure provide a transmission method, related equipment and system for terminal self-interference. The method includes: obtaining transmission time domain information of a user-terminal experiencing terminal self-interference, the transmission time domain information being transmission time domain information of the user terminal after the terminal self-interference has occurred for the user terminal; and carrying out transmission with the user terminal according to the transmission time domain information.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority to Chinese Patent Application No.201710409941.4, filed with the National Intellectual PropertyAdministration, PRC on Jun. 2, 2017, which is incorporated herein byreference in its entirety.

TECHNICAL FIELD

The present disclosure relates to the field of communicationtechnologies, and in particular to a transmission method, relatedequipment, and system for terminal self-interference.

BACKGROUND

Interference problems have always existed in the communicationtechnologies, and interference seriously affects communicationperformance of user terminals. Common interferences include interferencebetween different terminals, and interference between different systems,etc. However, with development of the communication technologies andusers' higher performance requirements for the user terminals, anothertype of interference is found, and this interference is terminalself-interference. The terminal self-interference refers to interferencegenerated by signals transmitted by the user terminal itself due tonon-ideality of radio frequency devices, such as received signals of theuser terminal itself being affected by high-order signal components. Forexample, an uplink signal transmitted by the user terminal causesinterference to a downlink signal of the user terminal. How to carry outeffective transmission when there is terminal self-interference is atechnical problem that needs to be solved urgently.

SUMMARY

Embodiments of the present disclosure provide a transmission method,related equipment and a system for terminal self-interference, to solvethe problem of how to perform transmission when there is terminalself-interference.

In a first aspect, one embodiment of the present disclosure provides atransmission method for terminal self-interference, which is applied toa first network device, including:

obtaining transmission time domain information of a user terminalexperiencing terminal self-interference, the transmission time domaininformation being transmission time domain information of the userterminal after the terminal self-interference occurs at the userterminal; and

carrying out transmission with the user terminal according to thetransmission time domain information.

In a second aspect, one embodiment of the present disclosure provides atransmission method for terminal self-interference, which is applied toa second network device, including:

when a user terminal experiences terminal self-interference, obtainingtransmission time domain information of the user terminal, thetransmission time domain information being transmission time domaininformation of the user terminal after the terminal self-interferenceoccurs at the user terminal; and

sending the transmission time domain information to a first networkdevice, thereby enabling the first network device to performtransmission with the user terminal according to the transmission timedomain information,

In a third aspect, one embodiment of the present disclosure provides atransmission method for terminal self-interference, which is applied toa centralized control unit, including:

when a user terminal experiences terminal self-interference, configuringtransmission time domain information of the user terminal for a firstnetwork device and a second network device, respectively, thetransmission time domain information being transmission time domaininformation of the user terminal after the terminal self-interferenceoccurs at the user terminal:

sending respective transmission time domain information to the firstnetwork device and the second network device, respectively, therebyenabling the first network device and the second network device toperform transmission with the user terminal according to their owntransmission time domain information.

In a fourth aspect, one embodiment of the present disclosure provides anetwork device, which is a first network device, including:

an obtaining module configured to obtain transmission time domaininformation of a user terminal experiencing terminal self-interference,the transmission time domain information being transmission time domaininformation of the user terminal after the terminal self-interferenceoccurs at the user terminal; and,

a transmission module configured to carry out transmission with the userterminal according to the transmission time domain information.

In a fifth aspect, one embodiment of the present disclosure provides anetwork device, which is a second network device, including:

an obtaining module configured to, when a user terminal experiencesterminal self-interference, obtain transmission time domain informationof the user terminal, the transmission time domain information beingtransmission time domain information of the user terminal after theterminal self-interference occurs at the user terminal; and,

a transmission module configured to, send the transmission time domaininformation to a first network device, thereby enabling the firstnetwork device to perform transmission with the user terminal accordingto the transmission time domain information.

In a sixth aspect, one embodiment of the present disclosure provides acentralized control unit, including:

a configuration module configured to, when a user terminal experiencesterminal self-interference, configure transmission time domaininformation of the user terminal for a first network device and a secondnetwork device, respectively, the transmission time domain informationbeing transmission time domain information of the user terminal afterthe terminal self-interference occurs at the user terminal;

a transmission module configured to send respective transmission timedomain information to the first network device and the second networkdevice, respectively, thereby enabling the first network device and thesecond network device to perform transmission with the user terminalaccording to their own transmission time domain information.

In a seventh aspect, one embodiment of the present disclosure provides anetwork device including: a processor, a memory, a transceiver and auser interface; wherein the processor, the memory, the transceiver andthe user interface are coupled together by a bus system, the processoris configured to read a program in the memory to implement steps of themethod corresponding to the first network device according to oneembodiment of the present disclosure.

In an eighth aspect, one embodiment of the present disclosure provides anetwork device including: a processor, a memory, a transceiver and auser interface; wherein the processor, the memory, the transceiver andthe user interface are coupled together by a bus system, the processoris configured to read a program in the memory to implement steps of themethod corresponding to the second network device according to oneembodiment of the present disclosure.

In a ninth aspect, one embodiment of the present disclosure provides acentralized control unit including: a processor, a memory, a transceiverand a user interface; wherein the processor, the memory, the transceiverand the user interface are coupled together by a bus system, theprocessor is configured to read a program in the memory to implementsteps of the method corresponding to the centralized control unitaccording to one embodiment of the present disclosure.

In a tenth aspect, one embodiment of the present disclosure provides atransmission system for terminal self-interference, including: the firstnetwork device and the second network device according to one embodimentof the present disclosure; or, including: the first network device andthe centralized control unit according to one embodiment of the presentdisclosure

In an eleventh aspect, one embodiment of the present disclosure providesa computer readable storage medium, wherein the computer readablestorage medium stores a resource configuration program, the resourceconfiguration program being executed by a processor to implement stepsof the method corresponding to the first network device according to oneembodiment of the present disclosure.

In a twelfth eleventh aspect, one embodiment of the present disclosureprovides a computer readable storage medium, wherein the computerreadable storage medium stores a resource configuration program, theresource configuration program being executed by a processor toimplement steps of the method corresponding to the second network deviceaccording to one embodiment of the present disclosure.

In a thirteenth aspect, one embodiment of the present disclosureprovides a computer readable storage medium, wherein the computerreadable storage medium stores a resource configuration program, theresource configuration program being executed by a processor toimplement steps of the method corresponding to the centralized controlunit according to one embodiment of the present disclosure.

In this way, in the embodiment of the present disclosure, thetransmission time domain information of the user terminal experiencingterminal self-interference is obtained, and then, when there is terminalself-interference, transmission with the user terminal can be carriedout according to the transmission time domain information, therebyavoiding terminal self-interference and then improving communicationefficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to illustrate technical solutions according to embodiments ofthe present disclosure more clearly, drawings to be used in thedescription of the embodiments of the present disclosure will bedescribed briefly hereinafter. Apparently, the drawings describedhereinafter are only some embodiments of the present disclosure, andother drawings may be obtained by those skilled in the art according tothose drawings without creative work.

FIG. 1 is a structural diagram of an applicable network system accordingto an embodiment of the present disclosure;

FIG. 2 is a flowchart of a transmission method for terminalself-interference according to an embodiment of the present disclosure;

FIG. 3 is a flowchart of another transmission method for terminalself-interference according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of frequency ranges according to anembodiment of the present disclosure;

FIG. 5 is a schematic diagram of transmission according to an embodimentof the present disclosure;

FIG. 6 is a schematic diagram of another transmission according to anembodiment of the present disclosure;

FIG. 7 is a schematic diagram of location information according to anembodiment of the present disclosure;

FIG. 8 is a schematic diagram of another location information accordingto an embodiment of the present disclosure;

FIG. 9 is a flowchart of another transmission method for terminalself-interference according to an embodiment of the present disclosure;

FIG. 10 is a flowchart of another transmission method for terminalself-interference according to an embodiment of the present disclosure;

FIG. 11 is a structural diagram of a network device according to anembodiment of the present disclosure;

FIG. 12 is a structural diagram of another network device according toan embodiment of the present disclosure;

FIG. 13 is a structural diagram of another network device according toan embodiment of the present disclosure;

FIG. 14 is a structural diagram of another network device according toan embodiment of the present disclosure;

FIG. 15 is a structural diagram of a centralized control unit accordingto an embodiment of the present disclosure;

FIG. 16 is a structural diagram of another network device according toan embodiment of the present disclosure;

FIG. 17 is a structural diagram of another network device according toan embodiment of the present disclosure;

FIG. 18 is a structural diagram of another centralized control unitaccording to an embodiment of the present disclosure;

FIG. 19 is a structural diagram of a transmission system for terminalself-interference according to an embodiment of the present disclosure;and

FIG. 20 is a structural diagram of a transmission system for terminalself-interference according to an embodiment of the present disclosure.

DETAILED DESCRIPTION

The technical solutions of embodiments of the present disclosure will bedescribed hereinafter in a clear and complete manner in conjunction withthe drawings of the embodiments of the present disclosure. Apparently,the following embodiments are merely a part of, rather than all of, theembodiments of the present disclosure, and based on these embodiments, aperson skilled in the art may obtain the other embodiments, which alsofall within the scope of the present disclosure,

The term “include” and its variations in the specification and claims ofthe application are intended to cover a non-exclusive inclusion, forexample, a process, method, system, product or device including a seriesof steps or units is not necessarily limited to those steps or unitsexplicitly listed, but may include other steps or units not explicitlylisted or inherent to such process, method, product or device. Moreover,the use of “and/or” in the specification and claims of the applicationdescribes an association relationship of associated objects, whichdenotes that three relationships may exist, e.g., A and/or B maydemonstrate that: A exists independently, B exists independently, A andB exist simultaneously.

In the embodiments of the present invention, the words “exemplary” or“example” are used herein to mean serving as an example, instance, orillustration. Any aspect or design described herein as “example” and/or“exemplary” is not necessarily to be construed as preferred oradvantageous over other aspects or designs. Rather, the use of the words“exemplary” or “example” are intended to present concepts in a concretefashion.

Referring to FIG. 1, FIG. 1 is a structural diagram of an applicablenetwork system according to an embodiment of the present disclosure. Asshown in FIG. 1, the network system includes a user terminal 11, a firstnetwork device 12, a second network device 13 and a centralized controlunit 14. The user terminal 11 may be a user equipment (UE), for example,a mobile phone, a tablet personal computer, a laptop computer, apersonal digital assistant (PDA), and a mobile Internet access device(MID) or a wearable device. It should be noted that the specific type ofthe user terminal 11 is not limited in the embodiment of the presentdisclosure. The user terminal 11 can establish communication with thefirst network device 12 and the second network device 13 simultaneously.The first network device 12 may be a network device in a first system,for example, a base station in the first system, and the base stationmay be a macro station, such as LTE eNB and 5G NR gNB. The first networkdevice 12 may also be an access point (AP). The second network device 13may be a network device in a second system, for example, a base stationin the second system, and the base station may be a macro station suchas LTE eNB and 5G NR gNB. It should be noted that, in the embodiment ofthe present disclosure, the specific types of the first network device12 and the second network device 13 are not limited. In addition, thefirst system may be an LTE system, and the second system may be a 5G NewRadio (NR) system; or, the first system may be a 5G NR system, and thesecond system may be an LTE system. In one embodiment of the presentdisclosure, the first system and the second system may be tightlycoupled in a dual connectivity (DC) manner. One of the systems acts as amaster node (MN) and the other system acts as a secondary node (SN). Thedual connectivity system includes two cell groups, which are a mastercell group (MCG) and a secondary cell group (SCG). The master cell groupmay include one primary cell (PCell) and one or more secondary cells(SCells). The secondary cell group may include one primary-secondarycell (PSCell), and one or more SCells. The centralized control unit 14may be deployed in the first network device, the second network device,or other network nodes, which is not limited in this embodiment.

In the above network system, the user terminal 11 may perform datatransmission with the first network device 12 and the second networkdevice 13 simultaneously, or may also perform data transmission with thefirst network device 12 and the second network device 13 at differenttimes, which is not limited in this embodiment.

Referring to FIG. 2, FIG. 2 is a flowchart of a transmission method forterminal self-interference according to an embodiment of the presentdisclosure. The method is applied to a first network device. As shown inFIG. 2, the method includes the following steps.

Step 201: obtaining transmission time domain information of a userterminal experiencing terminal self-interference, the transmission timedomain information being transmission time domain information of theuser terminal after the terminal self-interference occurs at the userterminal.

The above terminal self-interference may be that interference generatedby signals transmitted by the user terminal itself affects receivedsignals of the user terminal itself. For example, an uplink signal sentby the user terminal affects a downlink signal received by the userterminal.

The above obtaining the transmission time domain information may includereceiving the transmission time domain information sent by the secondnetwork device, or receiving the transmission time domain informationsent by the centralized control unit 14. The second network device maybe a network device that establishes a connection with the userterminal. That is, the user terminal establishes a connection with thefirst network device and the second network device simultaneously.

In addition, the above transmission time domain information beingtransmission time domain information of the user terminal after theterminal self-interference occurs at the user terminal, may be that thetransmission time domain information is used to determine time domaininformation for transmission between the first network device and theuser terminal, after the terminal self-interference occurs at the userterminal. Further, the above transmission time domain information may betransmission time domain information for eliminating terminalself-interference or reducing terminal self-interference, that is, whenthe first network device performs transmission according to thetransmission time domain information, the terminal self-interference maybe eliminated or effects of the terminal self-interference may bereduced.

Step 202: carrying out transmission with the user terminal according tothe transmission time domain information.

After the transmission time domain information is obtained, transmissionwith the user terminal may be performed according to the transmissiontime domain information. For example, the above transmission time domaininformation may be used to determine an available time domain fortransmission between the first network device and the user terminal.That is, according to the above transmission time domain information,the first network device may determine an available time domain resourcefor transmission with the user terminal. The first network device mayperform transmission with the user terminal on the available time domainresource. The above available time domain resource may be such a timedomain resource that when the first network device performs transmissionwith the user terminal on the available time domain resource, theterminal self-interference of the user terminal may be eliminated, orthe effects of the terminal self-interference of the user terminal maybe reduced. In addition, the above transmission includes an uplinktransmission and/or a downlink transmission.

In this embodiment, through the above steps, when the terminalself-interference occurs, transmission with the user terminal may becarried out according to the transmission time domain information.Meanwhile, the terminal self-interference may be eliminated or theeffects of the terminal self-interference may be reduced.

Referring to FIG. 3, FIG. 3 is a flowchart of another transmissionmethod for terminal self-interference according to an embodiment of thepresent disclosure. The method is applied to a first network device. Asshown in FIG. 3, the method includes the following steps.

Step 301: determining whether a user terminal experiences terminalself-interference; when the user terminal experiences terminalself-interference, determining a predicted frequency range affected bythe terminal self-interference for the terminal.

The determining whether the user terminal experiences terminalself-interference may be determined according to information reported bythe user terminal, or may be determined according to an operatingfrequency of the user terminal.

In addition, the above predicted frequency range may be understood as afrequency range that may be affected by the terminal self-interference,that is, the predicted frequency range may be predicted. For example,prediction is performed before the user terminal performs signaltransmission, thereby obtaining the frequency range that may be affectedby the terminal self-interference, i.e., determining which frequencyrange is potentially interfered with. Preferably, the above predictedfrequency range may a frequency range in which the user terminal ispotentially interfered with. Of course, the above predicted frequencyrange may also be a frequency range affected by the terminalself-interference recorded before performing the step 301.

Optionally, determining whether the user terminal experiences terminalself-interference includes:

determining whether a terminal self-interference isolation reported bythe user terminal is smaller than a preset first threshold; when theterminal self-interference isolation is smaller than the preset firstthreshold, determining that the user terminal experiences terminalself-interference; or,

determining whether a downlink packet loss rate reported by the userterminal is greater than a preset second threshold; when the downlinkpacket loss rate is greater than the preset second threshold,determining that the user terminal experiences terminalself-interference; or,

determining whether a downlink interference level reported by the userterminal is greater than a preset third threshold; when the downlinkinterference level is greater than the preset third threshold,determining that the user terminal experiences terminalself-interference; or,

determining whether a received-signal sensitivity reported by the userterminal is greater than a preset fourth threshold; when thereceived-signal sensitivity is greater than the preset fourth threshold,determining that the user terminal experiences terminalself-interference; or,

determining whether a degradation value of the received-signalsensitivity reported by the user terminal is greater than a preset fifththreshold; when the degradation value of the received-signal sensitivityis greater than the preset fifth threshold, determining that the userterminal experiences terminal self-interference.

The above terminal self-interference isolation may be a differenceobtained by subtracting a power (i.e., size of a generated interference)of an interference source signal received by an interfered link from atransmission power of an interference source link. For example, atransmission power of a signal sent by the user terminal at a frequencypoint A is 20 dBm, and a power (interference size) of the signalreceived at a frequency B is −40 dBm, then an isolation index is 60 dB,

The above downlink packet loss rate may be a downlink packet loss ratewhen the user terminal simultaneously transmits an uplink signal and adownlink signal. For example, the above downlink packet loss rate may bea downlink packet loss rate of the second system, when the user terminalsimultaneously transmits an uplink signal in the first system and adownlink signal in the second system. The downlink interference levelmay be a downlink interference level when the user terminalsimultaneously transmits the uplink signal and the downlink signal. Forexample, the downlink interference level may be a downlink interferencelevel of the first system, when the user terminal simultaneouslytransmits an uplink signal in the first system and an uplink signal inthe second system and when the user terminal transmits a downlink signalin the first system.

The above received-signal sensitivity may indicate a received-signalsensitivity of the user terminal which has been affected by the terminalself-interference. The above degradation value of the received-signalsensitivity may be a degradation value of the received-signalsensitivity of the user terminal which has been affected by the terminalself-interference. For example, under normal conditions unaffected bythe terminal self-interference, a received-signal sensitivity of theuser terminal is −85 dBm. When there is terminal self-interference, alarger receiving signal level is required to receive successfully, suchas −80 dBm. Then, the degradation value of the received-signalsensitivity is −80−(−85)=5 dB (relative value). At this point, thereceived-signal sensitivity information may indicate a received-signalsensitivity (−85 dBm) of the user terminal which has been affected bythe terminal self-interference. The degradation value of thereceived-signal sensitivity may be a degradation value (5 dB) of thereceived-signal sensitivity of the user terminal which has been affectedby the terminal self-interference.

In this embodiment, the first threshold to the fifth threshold may bepreset, or specified by a protocol, and the first threshold to the fifththreshold may be the same or different threshold values. In thisembodiment, since the determination is performed based on theinformation reported by the user terminal, it can be accuratelydetermined whether the user terminal experiences terminalself-interference. Further, in this embodiment, the predicted frequencyrange affected by the terminal self-interference for the terminal isobtained, then, when transmission with the user terminal is performed inthis frequency range, transmission with the user terminal may be carriedout according to the obtained transmission time domain information,thereby eliminating the terminal self-interference or reducing effectsof the terminal self-interference.

Optionally, determining a predicted frequency range affected by theterminal self-interference for the terminal includes:

calculating a first predicted candidate frequency range affected by theterminal self-interference for the terminal in an uplink operatingfrequency range of the first system, and taking a first target frequencyrange in the first predicted candidate frequency range as the predictedfrequency range. The first target frequency range is in the firstpredicted candidate frequency range and is in a frequency range of theuser terminal in a downlink system bandwidth of the second system.

The above first system may be an LTE system, and the second system maybe a 5G New Radio (NR) system. Of course, the embodiment of the presentdisclosure is not limited thereto, and the first system and the secondsystem may also be two communication systems other than the LTE systemand the 5G NR system.

The calculating a first predicted candidate frequency range affected bythe terminal self-interference for the user terminal in an uplinkoperating frequency range of the first system may include: according tocorresponding relationship between uplink operating frequency ranges andinterference influence frequency ranges, determining the above firstpredicted candidate frequency range. Or, the above first predictedcandidate frequency range may be obtained by performing a specificcalculation on the uplink operating frequency range of the first system.For example, when the uplink operating frequency range of the firstsystem (for example, LTE uplink frequency range) is 1720 MHz to 1740MHz, then, it may be determined that a frequency range in which the userterminal may be affected by the second harmonic interference is 3440 MHzto 3480 MHz, that is, 1720 MHz and 1740 MHz are respectively multipliedby 2. It should be noted that, the above first predicted candidatefrequency range may be understood as a frequency range that may beaffected by terminal self-interference of the user terminal in theuplink operating frequency range of the first system.

After that, a frequency range, which is in 3440 MHz to 3480 MHz and in adownlink system bandwidth of the second system, is taken as thepredicted candidate frequency range. For example, the downlink systembandwidth of the second system (i.e., 5G NR system) is 3460 MHz to 3500MHz, then, it is finally determined that a frequency range in which theuser terminal may be affected by second harmonic interference is in arange of about 3460 MHz to about 3480 MHz, i.e., the above predictedfrequency range. Thus, it is determined that the user terminal may beaffected by the terminal self-interference in the range of 3460 MHz to3480MHz. The above downlink system bandwidth of the second system may bedetermined according to a second system bandwidth and a center frequencypoint of the network side.

Optionally, the above determining a predicted frequency range affectedby the terminal self-interference for the user terminal includes:

calculating a second predicted candidate frequency range affected by theterminal self-interference for the terminal in an uplink operatingfrequency range of the first system and an uplink operating frequencyrange of the second system, and taking a second target frequency rangein the second predicted candidate frequency range as the predictedfrequency range. The second target frequency range is in the secondpredicted candidate frequency range and is in a frequency range of theuser terminal in a downlink system bandwidth of the first system.

The terminal self-interference of the terminal in the uplink operatingfrequency range of the first system and the uplink operating frequencyrange of the second system may be terminal self-interference generatedwhen the user terminal simultaneously transmits uplink signals in theuplink operating frequency range of the first system and the uplinkoperating frequency range of the second system. Of course, the secondpredicted candidate frequency range is predicted, i.e., a frequencyrange, which is determined before the user terminal simultaneouslytransmits uplink signals in the uplink operating frequency range of thefirst system and the uplink operating frequency range of the secondsystem and which may be affected by the terminal self-interferencegenerated when the user terminal simultaneously transmits the uplinksignals in the uplink operating frequency range of the first system andthe uplink operating frequency range of the second system.

In addition, the above calculating a second predicted candidatefrequency range affected by the terminal self-interference for theterminal in an uplink operating frequency range of the first system andan uplink operating frequency range of the second system, may include:according to corresponding relationship between uplink operatingfrequency ranges and interference influence frequency ranges,determining the above second predicted candidate frequency range. Or,the above second predicted candidate frequency range may be obtained byperforming a specific calculation on the uplink operating frequencyrange of the first system and the uplink operating frequency range ofthe second system. For example, the first system is an LTE system andthe second system is a 5G NR system; when the UE is in a dualconnectivity mode of operation between LTE and NR, if an uplinkfrequency range of LTE is 1720 MHz to 1740 MHz and an uplink frequencyrange of 5G NR is 3485 MHz to 3525 MHz, then, it may be determined thata frequency range in which the user terminal may be affected by thesecond harmonic interference is LTE downlink frequency in a range offrom 1745 MHz (3485-1740) to 1805 MHz (3525-1720). That is, the secondpredicted candidate frequency range is obtained by subtracting aboundary frequency of the uplink operating frequency range of the firstsystem from a boundary frequency of the uplink operating frequency rangeof the second system. After that, combining an LTE system bandwidth anda center frequency point of the network side, for example, the LTEsystem bandwidth is 1765 MHz to 1775 MHz, it is finally determined thata frequency range in which the user terminal may be affected by secondharmonic interference is 1.765 MHz to 1775 MHz, i.e., the abovepredicted candidate frequency range. Thus, it is determined that theuser terminal may be affected by the terminal self-interference in therange of 1765 MHz to 1.775 MHz.

For example, when the first system is an LTE system and the secondsystem is a SGNR system, the calculation of the first predictedcandidate frequency range and the second predicted candidate frequencyrange may also be as shown in Table 1.

TABLE 1 Calculation of intermodulation interference and second harmonicinterference of LTE-5GNR dual connectivity frequency affected by secondfrequency affected by NR uplink LTE uplink harmonic: 2nd order frequencyfrequency f2 2 * f2 intermodulation f1 (MHz) (MHz) (MHz) (IMD2): f1-f2(MHz) frequency 3400-3600 1710-1785 3420-3570 1615-1890 range

In this way, as shown in FIG. 4, if the LTE uplink frequency range is1710 MHz to 1785 MHz and the SGNR uplink frequency range is 3400 MHz to3600 MHz, a predicted frequency range that may be affected by theintermodulation interference in the LTE system is 1615 MHz to 15890 MHz,if the LTE uplink frequency range is 1710 MHz to1785 MHz, a predictedfrequency range that may be affected by the second harmonic interferencein the SGNR system is 3420 MHz to 3570 MHz.

Optionally, the above terminal self-interference includes:

harmonic interference of an uplink signal sent by the user terminal inthe first system to a downlink signal received by the user terminal inthe second system; or,

Intermodulation interference of an uplink signal sent by the userterminal in the first system and an uplink signal sent by the userterminal in the second system to a downlink signal received by the userterminal in the first system.

In this embodiment, for the harmonic interference, transmission iscarried out according to the transmission time domain information,thereby reducing or eliminating the interference. For example in whichthe first system is an LTE system, the second system is a 5G NR system,and the LTE FDD spectrum of 1.8 GHz and the NR TDD spectrum of 3.5 GHzare used for LTE-5G NR dual connectivity, as shown in FIG. 5, the userterminal establishes communication with an LTE base station and an NRbase station. The user terminal sends an uplink signal to the LTE basestation in the 1.8 GHz spectrum, and receives a downlink signal sent bythe NR base station in the 3.5 GHz spectrum, then the uplink signalgenerates terminal self-interference to the downlink signal. That is,the uplink signal is an interference source link, and the downlinksignal is an interfered link. Preferably, the above harmonicinterference may be second harmonic interference or other harmonicinterferences.

In this embodiment, for the intermodulation interference, transmissionis carried out according to the transmission time domain information,thereby reducing or eliminating the interference. For example in whichthe first system is an LTE system, the second system is a 5G NR system,and the LTE FDD spectrum of 1.8 GHz and the NR TDD spectrum of 3.5 GHzare used for LTE-5G NR dual connectivity, as shown in FIG. 6, the userterminal establishes communication with an LTE base station and an NRbase station. The user terminal sends an uplink signal to the LTE basestation in the 1.8 GHz spectrum, and simultaneously sends an uplinksignal to the NR base station in the 3.5 GHz spectrum, and receives adownlink signal sent by the LTE base station in the 1.8 GHz spectrum,then the two uplink signals generate terminal self-interference to thedownlink signal. That is, the two uplink signal is an interferencesource link, and the downlink signal is an interfered link.

In addition, the above intermodulation interference may be second-orderintermodulation (IMD2) and other high-order intermodulationinterference. For example, intermodulation interference generated bysimultaneous transmission of the user terminal at 1.8 GHz Uplink (UL)and 3.5 GHz UL of the frequency band Band3, includes the second-orderintermodulation interference and other high-order intermodulationinterference. Other high-order intermodulation such as 3rd orderintermodulation (IMD3) will produce near-zero-frequency intermodulationproduct in mathematical relationship. This product may appear in a LowNoise Amplifier (LNA) output of an LTE receiver. If an isolation of thecascaded mixer is limited in near-zero frequency, the product will leakdirectly to the output of the mixer and then further affect thereception performance.

It should be noted that, in this embodiment, the step 301 is optional.For example, determining of the terminal self-interference anddetermining of the predicted frequency range may be performed by thesecond network device, and implementation of the second network devicemay be referred to related description of the step 301. When the secondnetwork device performs determining, the first network device obtainstransmission time domain information of one user terminal experiencingterminal self-interference, and then the first network device defaultsto that the user terminal experiences terminal self-interference.

Step 302: obtaining transmission time domain information of the userterminal experiencing terminal self-interference, the transmission timedomain information being transmission time domain information of theuser terminal after the terminal self-interference occurs at the userterminal,

The above obtaining the transmission time domain information may includereceiving the transmission time domain information sent by the secondnetwork device or the centralized control unit.

Step 303: carrying out transmission with the user terminal according thetransmission time domain information.

The above transmission may be that the first network device and thesecond network device adopt time division multiplexing (TDM) mode fortransmission. The TDM mode may be that transmission of an uplink signalbetween the first network device (as an example, the first networkdevice may be a network device in the LTE system) and the user terminal,and transmission of a downlink signal between the second network deviceand the user terminal, are performed in the TDM mode, thereby preventingthe uplink signal between the first network device and the user terminaland the downlink signal between the second network device from beingtransmitted simultaneously, and then eliminating harmonic terminalself-interference. Alternatively, the TDM mode may be that when anuplink signal between the first network device (as an example, the firstnetwork device may be a network device in the ITE system) and the userterminal, and a downlink signal between the first network device and theuser terminal, are transmitted simultaneously, at this moment, an uplinksignal between the second network device and the user terminal cannot betransmitted. In this way, the uplink-downlink signals between the firstnetwork device and the user terminal are transmitted simultaneously, andtransmission of the uplink signal between the second network device andthe user terminal is avoided at this moment, thereby eliminatingintermodulation terminal self-interference.

Optionally, the obtaining transmission time domain information of theuser terminal experiencing terminal self-interference, includes:

receiving transmission time domain information sent by the secondnetwork device. The transmission time domain information includeslocation information of time domain resources. The time domain resourcesinclude available time domain resources for transmission between thefirst network device and the user terminal, or include time domainresources to be occupied by transmission between the second networkdevice and the user terminal.

When the time domain resource includes the available time domainresources for transmission between the first network device and the userterminal, the time domain resources may be available time domainresources for transmission between the first network device and the userterminal, which are obtained by the second network device according to ascheduling result of the second network device to the user terminal.When transmission between the first network device and the user terminalis performed in the above time domain resources, the terminalself-interference of the user terminal can be eliminated. For example,the second network device is a network device in the 5G NR system, timedomain resources to be occupied by transmission between the secondnetwork device and the user terminal include subframes 1, 3, 5, 7 and 9in one period, and these subframes are used for downlink transmissionwith the user terminal: then, the available time domain resources foruplink transmission between the first network device and the userterminal include subframes 2, 4, 6, 8 and 10, and downlink transmissionbetween the first network device and the user terminal may not belimited. For another example, the second network device is a networkdevice in the LTE system, time domain resources to be occupied bytransmission between the second network device and the user terminalinclude subframes 1, 3, 5, 7 and 9 in one period, and plink transmissionand downlink transmission with the user terminal are simultaneouslyperformed in these subframes; then, the available time domain resourcesfor uplink transmission between the first network device and the userterminal include subframes 2, 4, 6, 8 and 10, and downlink transmissionbetween the first network device and the user terminal may not belimited.

The time domain resources include time domain resources to be occupiedby transmission between the second network device and the user terminal,according to these time domain resources, the first network device candetermine available time domain resources of the first network device.

In addition, receiving transmission time domain information sent by thesecond network device may be transmission through an interface betweenthe first network device and the second network device, or transmissionbetween the two network side devices through the core network.

Optionally, carrying out transmission with the user terminal accordingto the transmission time domain information, includes:

when the time domain resources include available time domain resourcesfor transmission between the first network device and the user terminal,carrying out transmission with the user terminal in the available tunedomain resources for transmission between the first network device andthe user terminal; or,

when the time domain resources include time domain resources to beoccupied by transmission between the second network device and the userterminal, determining available time domain resources for transmissionbetween the first network device and the user terminal according to thetime domain resources to be occupied by transmission between the secondnetwork device and the user terminal; and carrying out transmission withthe user terminal in the available time domain resources fortransmission between the first network device and the user terminal.

In this embodiment, transmission between the first network device andthe user terminal can be carried out in the available time domainresources for transmission between the first network device and the userterminal, thereby eliminating the terminal self-interference of the userterminal.

Optionally, obtaining transmission time domain information of a userterminal experiencing terminal self-interference, includes:

obtaining transmission time domain information allocated by thecentralized control unit, where the transmission time domain informationincludes location information of time domain resources, and the timedomain resources include available time domain resources fortransmission between the first network device and the user terminal.

The above time domain resources may be allocated by the centralizedcontrol unit, and the terminal self-interference of the user terminalmay be eliminated when transmission between the first network device andthe user terminal is carried out in the above time domain resources. Forexample, the time domain resources indicate that the first networkdevice and the second network device adopt time division multiplexing(TDM) mode for transmission. The TDM mode may refer to the foregoingdescription about TDM.

In this embodiment, since the transmission time domain information isallocated by the centralized control unit, the centralized control unitcan configure the TDM mode for the first network device and the secondnetwork device to eliminate the terminal self-interference of the userterminal.

Optionally, in the above implementation manner of receiving transmissiontime domain information sent by the second network device or thecentralized control unit, the location information includes bitmapinformation of time domain resources and an identification of the userterminal (UE ID), and also includes one or more of the following: starttime, end time and duration.

In this embodiment, the location information may be as shown in FIG. 7or FIG. 8. When the location information does not include the end timeor the duration of the time domain resource (as shown in FIG. 8), thefirst network device may receive from the second network device or thecentralized control unit a notification message for deactivating theuser terminal, and deactivate the user terminal according to thenotification message.

Optionally, the time domain resources include time domain resourcescorresponding to a Hybrid Automatic Repeat Request (HARQ) process, andthe bitmap information includes bitmap information of the HARQ process.

In this embodiment, transmission for terminal self-interference may beperformed based on the bitmap information of the HARQ process. Forexample, there are eight HARQ processes at the second network device(LTE FDD system), and the second network device sends a sequence of01010101, which represents that the second network device will schedulethe user terminal on the HARQ processes 1, 3, 5 and 7, and not schedulethe user terminal on the HARQ processes 0, 2, 4 and 8. That is,available resources of the first network device are time domainresources corresponding to the HARQ processes 0, 2, 4 and 8. It shouldbe noted that the time domain resources corresponding to the HARQprocess may be predefined. For example, one HARQ process corresponds toone time slot, one subframe or one symbol, and the like.

Optionally, the time domain resource includes a slot, then the bitmapinformation includes bitmap information of the slot; or,

the time domain resource includes a subframe, then the bitmapinformation includes bitmap information of the subframe.

In this embodiment, transmission for terminal self-interference isperformed based on the bitmap information of the slot or the subframe.For example, the second network device (LTE system) sends a sequence of0101010101, which represents that the second network device schedulesthe user terminal in subframes 1, 3, 5, 7 and 9 in a period of 10subframes, and does not schedule the user terminal in subframes 0, 2, 4,8 and 10. That is, the subframes 0, 2, 4, 8 and 10 are available for thefirst network device.

Optionally, the time domain resources include a slot group, then thebitmap information includes bitmap information of the slot group; or

the time domain resources include a subframe group, then the bitmapinformation includes bitmap information of the subframe group.

In this embodiment, transmission for terminal self-interference isperformed based on the bitmap information of the slot group or thesubframe group. For example, the second network device (LTE system)sends a sequence of 01010, and each bit represents one subframe group.For example, each subframe group contains two consecutive subframes. Themeaning of the bitmap is that the second network device schedules theuser terminal in subframe groups 1 and 3 in a period of 10 subframes (5subframe groups), and does not schedule the user terminal in subframegroups 0, 2 and 4. That is, the subframe groups 0, 2 and 4 are availablefor the first network device.

It should be noted that in the above examples, each bit indicates a timedomain resource (for example, a subframe or a slot) for transmission ornot transmission. In one embodiment of the present disclosure, thebitmap information may also represent a time domain resource withmultiple bits. For example, two bits are used to represent a state ofone subframe or slot, where 00 indicates no transmission, 01 indicatestransmission with a transmission power being smaller than a threshold(which is smaller than the maximum transmission power), and 10 indicatestransmission with a transmission power being not greater than themaximum transmission power, and 11 is reserved meaning.

Optionally, carrying out transmission with the user terminal accordingto the transmission time domain information, includes:

when the first network device is a network device of the second systemand the second network device is a network device of the first system,carrying out uplink transmission with the user terminal in a first timedomain resource according to the transmission time domain information,where the first time domain resource is a time domain resource otherthan time domain resources in which the second network device and theuser terminal simultaneously perform uplink transmission and downlinktransmission.

In this embodiment, the intermodulation interference of the userterminal can be eliminated,

Optionally, carrying out transmission with the user terminal accordingto the transmission time domain information, includes:

when the first network device is a network device of the first systemand the second network device is a network device of the second system,carrying out uplink transmission or downlink transmission with the userterminal ire a second time domain resource according to the transmissiontime domain information where the second time domain resource is a timedomain resource occupied by uplink transmission between the secondnetwork device and the user terminal.

In this embodiment, the intermodulation interference of the userterminal can be eliminated.

Optionally, carrying out transmission with the user terminal accordingto the transmission time domain information, includes:

when the first network device is a network device of the second systemand the second network device is a network device of the first system,carrying out downlink transmission with the user terminal in a thirdtime domain resource according to the transmission time domaininformation, where the third time domain resource is a time domainresource other than time domain resources occupied by uplinktransmission between the second network device and the user terminal.

In this embodiment, harmonic interference of the user terminal can beeliminated.

Optionally, carrying out transmission with the user terminal accordingto the transmission time domain information, includes:

when the first network device is a network device of the first systemand the second network device is a network device of the second system,carrying out uplink transmission with the user terminal in a fourth timedomain resource according to the transmission time domain information,where the fourth time domain resource is a time domain resource otherthan time domain resources occupied by downlink transmission between thesecond network device and the user terminal.

In this embodiment, harmonic interference of the user terminal can beeliminated.

It should be noted that the above four embodiments may be implementedtogether with the location information of the time domain resources sentby the second network device or the centralized control unit. Forexample, available time domain resources for transmission between thefirst network device and the user terminal include: available timedomain resources for uplink transmission between the first networkdevice and the user terminal being the above first time domain resource;or, the time domain resource occupied by transmission between the secondnetwork device and the user terminal includes: time domain resources inwhich the second network device and the user terminal simultaneouslyperform uplink transmission and downlink transmission; or, availabletime domain resources for transmission between the first network deviceand the user terminal include: available time domain resources foruplink transmission or downlink transmission between the first networkdevice and the user terminal being the second time domain resource, thatis, the first network device cannot simultaneously perform uplinktransmission and downlink transmission in the second time domainresource, or others not listed here.

In this embodiment, after determining that the user terminal experiencesself-interference, transmission with the user terminal is carried outaccording to the obtained transmission time domain information for theterminal self-interference, thereby eliminating the terminalself-interference or reducing effects of the terminal self-interference.

Referring to FIG. 9, FIG. 9 is a flowchart of another transmissionmethod for terminal self-interference according to an embodiment of thepresent disclosure. The method is applied to a second network device. Asshown in FIG. 9, the method includes the following steps:

Step 901: when a user terminal experiences terminal self-interference,obtaining transmission time domain information of the user terminal, thetransmission time domain information being transmission time domaininformation of the user terminal after the terminal self-interferenceoccurs at the user terminal.

Step 902: sending the transmission time domain information to a firstnetwork device, thereby enabling the first network device to performtransmission with the user terminal according to the transmission timedomain information.

The transmission time domain information includes location informationof time domain resources. The time domain resources include availabletime domain resources for transmission between the first network deviceand the user terminal, or include time domain resources to be occupiedby transmission between the second network device and the user terminal.

Optionally, the location information includes bitmap information of timedomain resources and an identification of the user terminal, and alsoincludes one or more of the following: start time, end time andduration.

Optionally, the time domain resources include time domain resourcescorresponding to a Hybrid Automatic Repeat Request (HARQ) process, thenthe bitmap information includes bitmap information of the HARQ process;or,

the time domain resource includes a slot, then the bitmap informationincludes bitmap information of the slot; or,

the time domain resource includes a subframe, then the bitmapinformation includes bitmap information of the subframe; or,

the time domain resources include a slot group, then the bitmapinformation includes bitmap information of the slot group; or

the time domain resources include a subframe group, then the bitmapinformation includes bitmap information of the subframe group.

Optionally, when the user terminal experiences terminalself-interference, before obtaining transmission time domain informationof the user terminal, the method further includes:

determining whether the user terminal experiences terminalself-interference; when the user terminal experiences terminalself-interference, determining a predicted frequency range affected bythe terminal self-interference for the terminal.

it should be noted that this embodiment is an implementation manner ofthe second network device corresponding to the embodiment shown in FIG.2 and FIG. 3, and a specific implementation manner thereof may bereferred to the related description of the embodiment shown in FIG. 2and FIG. 3. The same beneficial effects can be achieved. In order toavoid repeated explanation, details will not be repeated here.

Referring to FIG. 10, FIG. 10 is a flowchart of another transmissionmethod for terminal self-interference according to an embodiment of thepresent disclosure. The method is applied to a centralized control unit.As shown in FIG. 10, the method includes the following steps.

Step 1001: when a user terminal experiences terminal self-interference,configuring transmission time domain information of the user terminalfor a first network device and a second network device, respectively,the transmission time domain information being transmission time domaininformation of the user terminal after the terminal self-interferenceoccurs at the user terminal.

Step 1002: sending respective transmission time domain information tothe first network device and the second network device, respectively,thereby enabling the first network device and the second network deviceto perform transmission with the user terminal according to their owntransmission time domain information.

Optionally, the transmission time domain information of the firstnetwork device includes location information of available time domainresources for transmission between the first network device and the userterminal;

the transmission time domain information of the second network deviceincludes location information of available time domain resources fortransmission between the second network device and the user terminal.

Optionally, the location information includes bitmap information of timedomain resources and an identification of the user terminal, and alsoincludes one or more of the following: start time, end time andduration.

Optionally, the time domain resources include time domain resourcescorresponding to a Hybrid Automatic Repeat Request (HARQ) process, thenthe bitmap information includes bitmap information of the HARQ process;or,

the time domain resource includes a slot, then the bitmap informationincludes bitmap information of the slot; or,

the time domain resource includes a subframe, then the bitmapinformation includes bitmap information of the subframe; or,

the time domain resources include a slot group, then the bitmapinformation includes bitmap information of the slot group; or

the time domain resources include a subframe group, then the bitmapinformation includes bitmap information of the subframe group.

It should be noted that this embodiment is an implementation manner ofthe centralized control unit corresponding to the embodiment shown inFIG. 2 and FIG. 3, and a specific implementation manner thereof may bereferred to the related description of the embodiment shown in FIG. 2and FIG. 3. The same beneficial effects can be achieved. In order toavoid repeated explanation, details will not be repeated here.

Referring to FIG. 11, FIG. 11 is a structural diagram of a networkdevice according to an embodiment of the present disclosure. The networkdevice is the first network device, and can implement details of thetransmission method for terminal self-interference of the embodimentshown in FIG. 2 and FIG. 3 with the same effect being achieved. As shownin FIG. 11, the network device 1100 includes:

an obtaining module 1101 configured to obtain transmission time domaininformation of a user terminal experiencing terminal self-interference,the transmission time domain information being transmission time domaininformation of the user terminal after the terminal self-interferenceoccurs at the user terminal; and,

a transmission module 1102 configured to carry out transmission with theuser terminal according to the transmission time domain information.

Optionally, the obtaining module 1101 is configured to receivetransmission time domain information sent by the second network device.The transmission time domain information includes location informationof time domain resources. The time domain resources include availabletime domain resources for transmission between the first network deviceand the user terminal, or include time domain resources to be occupiedby transmission between the second network device and the user terminal.

Optionally, the transmission module 1102 is configured to, when the timedomain resources include available time domain resources fortransmission between the first network device and the user terminal,carry out transmission with the user terminal in the available timedomain resources for transmission between the first network device andthe user terminal; or,

the transmission module 1102 is configured to, when the time domainresources include time domain resources to be occupied by transmissionbetween the second network device and the user terminal, determineavailable time domain resources for transmission between the firstnetwork device and the user terminal according to the time domainresources to he occupied by transmission between the second networkdevice and the user terminal, and carry out transmission with the userterminal in the available time domain resources for transmission betweenthe first network device and the user terminal.

Optionally, the obtaining module 1101 is configured to obtaintransmission time domain information allocated by the centralizedcontrol unit, where the transmission time domain information includeslocation information of time domain resources, and the time domainresources include available time domain resources for transmissionbetween the first network device and the user terminal.

Optionally, the location information includes bitmap information of timedomain resources and an identification of the user terminal, and alsoincludes one or more of the following: start time, end time andduration.

Optionally, the time domain resources include time domain resourcescorresponding to a Hybrid Automatic Repeat Request (HARQ) process, thenthe bitmap information includes bitmap information of the HARQ process;or,

the time domain resource includes a slot, then the bitmap informationincludes bitmap information of the slot; or,

the time domain resource includes a subframe, then the bitmapinformation includes bitmap information of the subframe; or,

the time domain resources include a slot group, then the bitmapinformation includes bitmap information of the slot group; or

the time domain resources include a subframe group, then the bitmapinformation includes bitmap information of the subframe group.

Optionally, the transmission module 1102 is configured to, when thefirst network device is a network device of the second system and thesecond network device is a network device of the first system, carry outuplink transmission with the user terminal in a first time domainresource according to the transmission time domain information, wherethe first time domain resource is a time domain resource other than timedomain resources in which the second network device and the userterminal simultaneously perform uplink transmission and downlinktransmission; or,

the transmission module 1102 is configured to, when the first networkdevice is a network device of the first system and the second networkdevice is a network device of the second system, carry out uplinktransmission or downlink transmission with the user terminal in a secondtime domain resource according to the transmission time domaininformation, where the second time domain resource is a time domainresource occupied by uplink transmission between the second networkdevice and the user terminal; or,

the transmission module 1102 is configured to, when the first networkdevice is a network device of the second system and the second networkdevice is a network device of the first system carry out downlinktransmission with the user terminal in a third time domain resourceaccording to the transmission time domain information, where the thirdtime domain resource is a time domain resource other than time domainresources occupied by uplink transmission between the second networkdevice and the user terminal; or,

the transmission module 1102 is configured to, when the first networkdevice is a network device of the first system and the second networkdevice is a network device of the second system, carry out uplinktransmission with the user terminal in a fourth time domain resourceaccording to the transmission time domain information, where the fourthtime domain resource is a time domain resource other than time domainresources occupied by downlink transmission between the second networkdevice and the user terminal.

Optionally, as shown in FIG. 12, the network device 1100 furtherincludes:

a determining module 1103 configured to determine whether the userterminal experiences terminal self-interference; when the user terminalexperiences terminal self-interference, determine a predicted frequencyrange affected by the terminal self-interference for the terminal.

Optionally, the determining module 1103 is configured to, determinewhether a terminal self-interference isolation reported by the userterminal is smaller than a preset first threshold; when the terminalself-interference isolation is smaller than the preset first threshold,determine that the user terminal experiences terminal self-interference;or,

the determining module 1103 is configured to, determine whether adownlink packet loss rate reported by the user terminal is greater thana preset second threshold; when the downlink packet loss rate is greaterthan the preset second threshold, determine that the user terminalexperiences terminal self-interference; or,

the determining module 1103 is configured to, determine whether adownlink interference level reported by the user terminal is greaterthan a preset third threshold; When the downlink interference level isgreater than the preset third threshold, determine that the userterminal experiences terminal self-interference; or,

the determining module 1103 is configured to, determine whether areceived-signal sensitivity reported by the user terminal is greaterthan a preset fourth threshold; when the received-signal sensitivity isgreater than the preset fourth threshold, determine that the userterminal experiences terminal self-interference; or,

the determining module 1103 is configured to, determine whether adegradation value of the received-signal sensitivity reported by theuser terminal is greater than a preset fifth threshold; when thedegradation value of the received-signal sensitivity is greater than thepreset fifth threshold, determine that the user terminal experiencesterminal self-interference.

Optionally, the determining module 1103 is configured to, calculate afirst predicted candidate frequency range affected by the terminalself-interference for the user terminal in an uplink operating frequencyrange of the first system, and take a first target frequency range inthe first predicted candidate frequency range as the predicted frequencyrange; where the first target frequency range is in the first predictedcandidate frequency range and is in a frequency range of the userterminal in a downlink system bandwidth of the second system; or,

the determining module 1103 is configured to, calculate a secondpredicted candidate frequency range affected by the terminalself-interference for the user terminal in an uplink operating frequencyrange of the first system and an uplink operating frequency range of thesecond system, and take a second target frequency range in the secondpredicted candidate frequency range as the predicted frequency range;where the second target frequency range is in the second predictedcandidate frequency range and is in a frequency range of the userterminal in a downlink system bandwidth of the first system.

it should be noted that, the network device 1100 in the embodiment maybe the first network device in any of the method embodiments of thepresent disclosure, and the first network device in the methodembodiments of the present disclosure can be implemented by the networkdevice 1100 in the embodiment with the same beneficial effects achieved,and details are not described herein again.

Referring to FIG. 13, FIG. 13 is a structural diagram of another networkdevice according to an embodiment of the present disclosure. The networkdevice is a second network device, and can implement details of thetransmission method for terminal self-interference of the embodimentshown in FIG. 9 with the same effect being achieved. As shown in FIG.13, the network device 1300 includes:

an obtaining module 1301 configured to, when a user terminal experiencesterminal self-interference, obtain transmission time domain informationof the user terminal, the transmission time domain information beingtransmission time domain information of the user terminal after theterminal self-interference occurs at the user terminal; and,

a transmission module 1302 configured to, send the transmission timedomain information to a first network device, thereby enabling the firstnetwork device to perform transmission with the user terminal accordingto the transmission time domain information.

Optionally, the transmission time domain information includes locationinformation of time domain resources. The time domain resources includeavailable time domain resources for transmission between the firstnetwork device and the user terminal, or include time domain resourcesto be occupied by transmission between the second network device and theuser terminal.

Optionally, the location information includes bitmap information of timedomain resources and an identification of the user terminal, and alsoincludes one or more of the following: start time, end time andduration.

Optionally, the time domain resources include time domain resourcescorresponding to a Hybrid Automatic Repeat Request (HARQ) process, thenthe bitmap information includes bitmap information of the HARQ process;or,

the time domain resource includes a slot, then the bitmap informationincludes bitmap information of the slot; or,

the time domain resource includes a subframe, then the bitmapinformation includes bitmap information of the subframe; or,

the time domain resources include a slot group, then the bitmapinformation includes bitmap information of the slot group; or

the time domain resources include a subframe group, then the bitmapinformation includes bitmap information of the subframe group.

Optionally, as shown in FIG. 14, the network device 1300 furtherincludes:

a determining module 1303 configured to determine whether the userterminal experiences terminal self-interference; when the user terminalexperiences terminal self-interference, determine a predicted frequencyrange affected by the terminal self-interference for the terminal.

It should be noted that, the network device 1300 in the embodiment maybe the second network device in any of the method embodiments of thepresent disclosure, and the second network device in any of the methodembodiments of the embodiments may be implemented by the network device1300 in the embodiment with the same beneficial effects being achieved,and details are not described herein

Referring to FIG. 15, FIG. 15 is a structural diagram of a centralizedcontrol unit according to an embodiment of the present disclosure. Thecentralized control unit can implement details of the transmissionmethod for terminal self-interference of the embodiment shown in FIG.10, and achieve the same effect. As shown in FIG. 15, the centralizedcontrol unit 1500 includes:

a configuration module 1501 configured to, when a user terminalexperiences terminal self-interference, configure transmission timedomain information of the user terminal for a first network device and asecond network device, respectively, the transmission time domaininformation being transmission time domain information of the userterminal after the terminal self-interference occurs at the userterminal;

a transmission module 1502 configured to send respective transmissiontime domain information to the first network device and the secondnetwork device, respectively, thereby enabling the first network deviceand the second network device to perform transmission with the userterminal according to their own transmission time domain information.

Optionally, the transmission time domain information of the firstnetwork device includes location information of available time domainresources for transmission between the first network device and the userterminal;

the transmission time domain information of the second network deviceincludes location information of available time domain resources fortransmission between the second network device and the user terminal.

Optionally, the location information includes bitmap information of timedomain resources and an identification of the user terminal, and alsoincludes one or more of the following: start time, end time andduration.

Optionally, the time domain resources include time domain resourcescorresponding to a Hybrid Automatic Repeat Request (HARQ) process, thenthe bitmap information includes bitmap information of the HARQ process;or,

the time domain resource includes a slot, then the bitmap informationincludes bitmap information of the slot; or,

the time domain resource includes a subframe, then the bitmapinformation includes bitmap information of the subframe; or,

the time domain resources include a slot group, then the bitmapinformation includes bitmap information of the slot group; or

the time domain resources include a subframe group, then the bitmapinformation includes bitmap information of the subframe group.

it should be noted that, the centralized control unit 1500 in theembodiment may be the centralized control unit in any of the methodembodiments of the present disclosure, and the centralized control unitin any of the method embodiments of the embodiments may be implementedby the centralized control unit 1500 in the embodiment with the samebeneficial effects being achieved, and details are not described hereinagain.

Referring to FIG. 16, FIG. 16 is a structural diagram of a networkdevice according to an embodiment of the present disclosure. The networkdevice is a first network device, and can implement details of thetransmission method for terminal self-interference of the embodimentshown in FIG. 2 and FIG. 3 with the same effect being achieved. As shownin FIG. 16, the network device 1600 includes a processor 1601, atransceiver 1602, a memory 1603, a user interface 1604, and a bussystem.

The processor 1601 is configured to read a program in the memory 1603and perform the following process:

obtaining transmission time domain information of a user terminalexperiencing terminal self-interference, the transmission time domaininformation being transmission time domain information of the userterminal after the terminal self-interference occurs at the userterminal;

carrying out transmission with the user terminal according to thetransmission time domain information.

The transceiver 1602 is configured to receive and transmit data underthe control of he processor 1601.

In FIG. 16, the bus architecture may include any number ofinterconnected buses and bridges. Specifically, various circuits of oneor more processors, which are represented by the processor 1601, and thestorage, which is represented by the memory 1603, are linked together.The bus architecture may link various other circuits, such as aperipheral device, voltage regulator and a power management circuittogether. These features are well known in this field, therefore, thisdisclosure does not make further description on these features. The businterface provides an interface. The transceiver 1602 can be multipleelements, including a transmitter and a receiver and provide units,which communicate with other devices on the transmission medium. Fordifferent user equipment, the user interface 1604 may also be aninterface capable of externally connecting required devices, includingbut not limited to a keypad, a monitor, a speaker, a microphone, ajoystick, and the like.

The processor 1601 is responsible for managing the bus architecture andcommon processing and the memory 1603 may store data used by theprocessor 1601 when executing the operations.

Optionally, the processor 1601 implements obtaining transmission timedomain information of the user terminal experiencing terminalself-interference in a way including:

receiving the transmission time domain information sent by the secondnetwork device: where the transmission time domain information includeslocation information of time domain resources, the time domain resourcesinclude available time domain resources for transmission between thefirst network device and the user terminal, or include time domainresources to be occupied by transmission between the second networkdevice and the user terminal.

Optionally, the processor 1601 implements carrying out transmission withthe user terminal according to the transmission time domain informationin a way including:

when the time domain resources include available time domain resourcesfor transmission between the first network device and the user terminal,carrying out transmission with the user terminal in the available timedomain resources for transmission between the first network device andthe user terminal; or,

when the time domain resources include time domain resources to beoccupied by transmission between the second network device and the userterminal, determining available time domain resources for transmissionbetween the first network device and the user terminal according to thetime domain resources to be occupied by transmission between the secondnetwork device and the user terminal, and carrying out transmission withthe user terminal in the available time domain resources fortransmission between the first network device and the user terminal.

Optionally, the processor 1601 implements obtaining transmission timedomain information of the user terminal experiencing terminalself-interference in a way including:

obtaining transmission time domain information allocated by thecentralized control unit, where the transmission time domain informationincludes location information of time domain resources, and the timedomain resources include available time domain resources fortransmission between the first network device and the user terminal.

Optionally, the location information includes bitmap information of timedomain resources and an identification of the user terminal, and alsoincludes one or more of the following: start time, end time andduration.

Optionally, the time domain resources include time domain resourcescorresponding to a Hybrid Automatic Repeat Request (HARQ) process, thenthe bitmap information includes bitmap information of the HARQ processor,

the time domain resource includes a slot, then the bitmap informationincludes bitmap information of the slot; or,

the time domain resource includes a subframe, then the bitmapinformation includes bitmap information of the subframe; or,

the time domain resources include a slot group, then the bitmapinformation includes bitmap information of the slot group; or

the time domain resources include a subframe group, then the bitmapinformation includes bitmap information of the subframe group.

Optionally, the processor 1601 implements carrying out transmission withthe user terminal according to the transmission time domain informationin a way including:

when the first network device is a network device of the second systemand the second network device is a network device of the first system,carrying out uplink transmission with the user terminal in a first timedomain resource according to the transmission time domain information,where the first time domain resource is a time domain resource otherthan time domain resources in which the second network device and theuser terminal simultaneously perform uplink transmission and downlinktransmission; or,

when the first network device is a network device of the first systemand the second network device is a network device of the second system,carrying out uplink transmission or downlink transmission with the userterminal in a second time domain resource according to the transmissiontime domain information, where the second time domain resource is a timedomain resource occupied by uplink transmission between the secondnetwork device and the user terminal; or,

when the first network device is a network device of the second systemand the second network device is a network device of the first system,carrying out downlink transmission with the user terminal in a thirdtime domain resource according to the transmission time domaininformation, where the third time domain resource is a time domainresource other than time domain resources occupied by uplinktransmission between the second network device and the user terminal;or,

when the first network device is a network device of the first systemand the second network device is a network device of the second system,carrying out uplink transmission with the user terminal in a fourth timedomain resource according to the transmission time domain information,where the fourth time domain resource is a time domain resource otherthan time domain resources occupied by downlink transmission between thesecond network device and the user terminal.

Optionally, before obtaining transmission time domain information of theuser terminal experiencing terminal self-interference, the processor1601 is further configured to,

determine whether the user terminal experiences terminalself-interference; when the user terminal experiences terminalself-interference, determine a predicted frequency range affected by theterminal self-interference for the terminal.

Optionally, the processor 1601 implements determining whether the userterminal experiences terminal self-interference in a way including:

determining whether a terminal self-interference isolation reported bythe user terminal is smaller than a preset first threshold; when theterminal self-interference isolation is smaller than the preset firstthreshold, determining that the user terminal experiences terminalself-interference; or,

determining whether a downlink packet loss rate reported by the userterminal is greater than a preset second threshold; when the downlinkpacket loss rate is greater than the preset second threshold,determining that the user terminal experiences terminalself-interference; or,

determining whether a downlink interference level reported by the userterminal is greater than a preset third threshold; when the downlinkinterference level is greater than the preset third threshold,determining that the user terminal experiences terminalself-interference; or,

determining whether a received-signal sensitivity reported by the userterminal is greater than a preset fourth threshold; when thereceived-signal sensitivity is greater than the preset fourth threshold,determining that the user terminal experiences terminalself-interference; or,

determining whether a degradation value of the received-signalsensitivity reported by the user terminal is greater than a preset fifththreshold; when the degradation value of the received-signal sensitivityis greater than the preset fifth threshold, determining that the userterminal experiences terminal self-interference.

Optionally, the processor 1601 implements determining a predictedfrequency range affected by the terminal self-interference for theterminal in a way including:

calculating a first predicted candidate frequency range affected by theterminal self-interference for the user terminal in an uplink operatingfrequency range of the first system, and taking a first target frequencyrange in the first predicted candidate frequency range as the predictedfrequency range; where the first target frequency range is in the firstpredicted candidate frequency range and is in a frequency range of theuser terminal in a downlink system bandwidth of the second system; or,

calculating a second predicted candidate frequency range affected by theterminal self-interference for the user terminal in an uplink operatingfrequency range of the first system and an uplink operating frequencyrange of the second system, and taking a second target frequency rangein the second predicted candidate frequency range as the predictedfrequency range; where the second target frequency range is in thesecond predicted candidate frequency range and is in a frequency rangeof the user terminal in a downlink system bandwidth of the first system.

It should be noted that, the network device 1600 in the embodiment maybe the first network device in any of the method embodiments of thepresent disclosure, and the first network device in the methodembodiments of the present disclosure can be implemented by the networkdevice 1600 in the embodiment with the same beneficial effects achieved,and details are not described herein again.

Referring to FIG. 17, FIG. 17 is a structural diagram of a networkdevice according to an embodiment of the present disclosure. The networkdevice is a second network device, and can implement details of thetransmission method for terminal self-interference of the embodimentshown in FIG. 9 with the same effect being achieved. As shown in FIG.17, the network device 1700 includes a processor 1701, a transceiver1702, a memory 1703, a user interface 1704, and a bus system.

The processor 1701 is configured to read a program in the memory 1703and perform the following process:

when a user terminal experiences terminal self-interference, obtainingtransmission time domain information of the user terminal, thetransmission time domain information being transmission time domaininformation of the user terminal after the terminal self-interferenceoccurs at the user terminal; and

sending the transmission time domain information to a first networkdevice, thereby enabling the first network device to performtransmission with the user terminal according to the transmission timedomain information,

The transceiver 1702 is configured to receive and transmit data underthe control of the processor 1701,

In FIG. 17, the bus architecture may include any number ofinterconnected buses and bridges. Specifically, various circuits of oneor more processors, which are represented by the processor 1701, and thestorage, which is represented by the memory 1703, are linked together.The bus architecture may link various other circuits, such as aperipheral device, voltage regulator and a power management circuittogether. These features are well known in this field, therefore, thisdisclosure does not make further description on these features. The businterface provides an interface. The transceiver 1702 can be multipleelements, including a transmitter and a receiver and provide units,which communicate with other devices on the transmission medium. Fordifferent user equipment, the user interface 1704 may also be aninterface capable of externally connecting required devices, includingbut not limited to a keypad, a monitor, a speaker, a microphone, ajoystick, and the like.

The processor 1701 is responsible for managing the bus architecture andcommon processing and the memory 1703 may store data used by theprocessor 1701 when executing the operations.

Optionally, the transmission time domain information includes locationinformation of time domain resources. The time domain resources includeavailable time domain resources for transmission between the firstnetwork device and the user terminal, or include time domain resourcesto be occupied by transmission between the second network device and theuser terminal.

Optionally, the location information includes bitmap information of timedomain resources and an identification of the user terminal, and alsoincludes one or more of the following: start time, end time andduration.

Optionally, the time domain resources include time domain resourcescorresponding to a Hybrid Automatic Repeat Request (HARQ) process, thenthe bitmap information includes bitmap information of the HARQ process;or,

the time domain resource includes a slot, then the bitmap informationincludes bitmap information of the slot; or,

the time domain resource includes a subframe, then the bitmapinformation includes bitmap information of the subframe; or,

the time domain resources include a slot group, then the bitmapinformation includes bitmap information of the slot group, or,

the time domain resources include a subframe group, then the bitmapinformation includes bitmap information of the subframe group.

Optionally, when the user terminal experiences terminalself-interference, before obtaining transmission time domain informationof the user terminal, the processor 1701 is further configured to:

determine whether the user terminal experiences terminalself-interference; when the user terminal experiences terminalself-interference, determine a predicted frequency range affected by theterminal self-interference for the terminal.

it should be noted that the network device 1700 in the embodiment may bethe second network device in any of the method embodiments of thepresent disclosure, and the second network device in the methodembodiments of the present disclosure can be implemented by the networkdevice 1700 in the embodiment with the same beneficial effects achieved,and details are not described herein again.

Referring to FIG. 18, FIG. 18 is a structural diagram of a centralizedcontrol unit according to an embodiment of the present disclosure. Thecentralized control unit can implement details of the transmissionmethod for terminal self-interference of the embodiment shown in FIG. 10with the same effect being achieved. As shown in FIG. 18, thecentralized control unit 1800 includes a processor 1801, a transceiver1802, a memory 1803, a user interface 1804 and a bus system.

The processor 1801 is configured to read a program in the memory 1803and perform the following process:

when a user terminal experiences terminal self-interference, configuringtransmission time domain information of the user terminal for a firstnetwork device and a second network device, respectively, thetransmission time domain information being transmission time domaininformation of the user terminal after the terminal self-interferenceoccurs at the user terminal;

sending respective transmission time domain information to the firstnetwork device and the second network device, respectively, therebyenabling the first network device and the second network device toperform transmission with the user terminal according to their owntransmission time domain information.

The transceiver 1802 is configured to receive and transmit data underthe control of he processor 1801.

In FIG. 18, the bus architecture may include any number ofinterconnected buses and bridges. Specifically, various circuits of oneor more processors, which are represented by the processor 1801, and thestorage, which is represented by the memory 1803, are linked together.The bus architecture may link various other circuits, such as aperipheral device, voltage regulator and a power management circuittogether. These features are well known in this field, therefore, thisdisclosure does not make further description on these features. The businterface provides an interface. The transceiver 1802 can be multipleelements, including a transmitter and a receiver and provide units,which communicate with other devices on the transmission medium. Fordifferent user equipment, the user interface 1804 may also be aninterface capable of externally connecting required devices, includingbut not limited to a keypad, a monitor, a speaker, a microphone, ajoystick, and the like.

The processor 1801 is responsible for managing the bus architecture andcommon processing and the memory 1803 may store data used by theprocessor 1801 when executing the operations.

Optionally, the transmission time domain information of the firstnetwork device includes location information of available time domainresources for transmission between the first network device and the userterminal;

the transmission time domain information of the second network deviceincludes location information of available time domain resources fortransmission between the second network device and the user terminal.

Optionally, the location information includes bitmap information of timedomain resources and an identification of the user terminal, and alsoincludes one or more of the following: start time, end time andduration.

Optionally, the time domain resources include time domain resourcescorresponding to a Hybrid Automatic Repeat Request (HARQ) process, thenthe bitmap information includes bitmap information of the HARQ process;or,

the time domain resource includes a slot, then the bitmap informationincludes bitmap information of the slot; or,

the time domain resource includes a subframe, then the bitmapinformation includes bitmap information of the subframe; or,

the time domain resources include a slot group, then the bitmapinformation includes bitmap information of the slot group; or

the time domain resources include a subframe group, then the bitmapinformation includes bitmap information of the subframe group.

It should be noted that the centralized control unit 1800 in theembodiment may be the centralized control unit in any of the methodembodiments of the present disclosure, and the centralized control unitin the method embodiments of the present disclosure can be implementedby the centralized control unit 1800 in the embodiment with the samebeneficial effects achieved, and details are not described herein again.

Referring to FIG. 19, FIG. 19 is a structural diagram of a transmissionsystem for terminal self-interference according to an embodiment of thepresent disclosure. As shown in FIG. 19, the transmission systemincludes a first network device 1901 and a second network device 1902.The network device 1901 may be the first network device of anyembodiment of the present disclosure, and the second network device 1902may be the second network device of any embodiment of the presentdisclosure, details of which will not be elaborated herein.

Referring to FIG. 20, FIG. 20 is a structural diagram of anothertransmission system for terminal self-interference according to anembodiment of the present disclosure. As shown in FIG. 20, thetransmission system includes a first network device 2001 and acentralized control unit 2002. The first network device 2001 may be thefirst network device of any embodiment of the present disclosure. Thecentralized control unit 2002 may be the centralized control unit of anyimplementation manner provided by the embodiments of the presentdisclosure, and details are not described herein.

One embodiment of the present disclosure further provides a computerreadable storage medium, which stores a resource configuration program.When the resource configuration program is executed by the processor,the processor implements steps of the transmission method for terminalself-interference corresponding to the first network device of theembodiment of the present disclosure.

One embodiment of the present disclosure further provides a computerreadable storage medium, which stores a resource configuration program,When the resource configuration program is executed by the processor,the processor implements steps of the transmission method for terminalself-interference corresponding to the second network device of theembodiment of the present disclosure.

One embodiment of the present disclosure further provides a computerreadable storage medium, which stores a resource configuration program.When the resource configuration program is executed by the processor,the processor implements steps of the transmission method for terminalself-interference corresponding to the centralized control unit of theembodiment of the present disclosure.

A person skilled in the art may be aware that, in combination with theexamples described in the embodiments of this disclosure, units andalgorithm steps may be implemented by electronic hardware or acombination of computer software and electronic hardware. Whether thefunctions are performed by hardware or software depends on particularapplications and design constraint conditions of the technicalsolutions. A person skilled in the art may use different methods toimplement the described functions for each particular application, butit should not be considered that the implementation goes beyond thescope of the disclosure.

It may be clearly understood by a person skilled in the art that, forconvenient and brief description, for a detailed working procedure ofthe foregoing system, apparatus, and unit, reference may be made to acorresponding procedure in the foregoing method embodiments, and detailsare not described herein again.

In the several embodiments provided in the present application, itshould be understood that the disclosed device and method may beimplemented in other manners. For example, the described deviceembodiment is merely exemplary. For example, the unit division is merelylogical function division and may be other division in actualimplementation. For example, a plurality of units or components may becombined or integrated into another system, or some features may beneglected or not performed. In addition, the displayed or discussedmutual couplings or direct couplings or communication connections may beimplemented through some interfaces. The indirect couplings orcommunication connections between the devices or units may beimplemented in electronic, mechanical, or other forms.

The units described as separate parts may or may not be physicallyseparate, and parts displayed as units may or may not be physical units,that is, may be located in one position, or may be distributed on aplurality of network units. A part or all of the units may be selectedaccording to actual needs to achieve the objectives of the solutions ofthe embodiments.

In addition, functional units in the embodiments of this disclosure maybe integrated into one processing unit, or each of the units may existalone physically, or two or more units may be integrated into one unit.

If the functions are implemented in a form of a software functional unitand sold or used as an independent product, the functions may be storedin a computer-readable storage medium. Based on such an understanding,the technical solutions of this disclosure essentially, or the partcontributing to the prior art, or a part of the technical solutions maybe implemented in a form of a software product. The computer softwareproduct is stored in a storage medium, and includes several instructionsfor instructing a computer device (which may be a personal computer, aserver, or a network device) to perform all or a part of the steps ofthe methods described in the embodiments of the disclosure. Theforegoing storage medium includes any medium that can store programcode, such as a Universal Serial Bus (USB) flash drive, a removable harddisk, a ROM, a RAM, a magnetic disk, or an optical disc.

The aforementioned are merely specific implementations of thisdisclosure, but the scope of the disclosure is by no means limitedthereto. Any modifications or replacements that would easily occurred tothose skilled in the art, without departing from the technical scopedisclosed in the disclosure, should be encompassed in the scope of thisdisclosure. Therefore, the scope of this disclosure is to be determinedby the scope of the claims.

1. A transmission method for terminal self-interference, which isapplied to a first network device, comprising; obtaining transmissiontime domain information of a user terminal experiencing terminalself-interference, the transmission time domain information beingtransmission time domain information of the user terminal after theterminal self-interference occurs at the user terminal; and carrying outtransmission with the user terminal according to the transmission timedomain information.
 2. The method of claim I, wherein the obtainingtransmission time domain information of a use terminal experiencingterminal self-interference, comprises receiving the transmission timedomain information sent by a second network device; wherein thetransmission time domain information comprises location information oftime domain resources, the time domain resources comprise available timedomain resources for transmission between the first network device andthe user terminal, or comprise time domain resources to be occupied bytransmission between the second network device and the user terminal 3.The method of claim 2, wherein the carrying out transmission with theuser terminal according to the transmission time domain information,comprises: when the time domain resources comprise the available timedomain resources for transmission between the first network device andthe user terminal, carrying out transmission with the user terminal inthe available time domain resources for transmission between the firstnetwork device and the user terminal; or, when the time domain resourcescomprise the time domain resources to be occupied by transmissionbetween the second network device and the user terminal, determiningavailable time domain resources for transmission between the firstnetwork device and the user terminal according to the time domainresources to be occupied by transmission between the second networkdevice and the user terminal, and carrying out transmission with theuser terminal in the available time domain resources for transmissionbetween the first network device and the user terminal.
 4. The method ofclaim 1, wherein the obtaining transmission time domain information of auser terminal experiencing terminal self-interference, comprises:obtaining transmission time domain information allocated by acentralized control unit, wherein the transmission time domaininformation comprises location information of time domain resources, andthe time domain resources comprises available time domain resources fortransmission between the first network device and the user terminal. 5.The method of claim 2, wherein the location information comprises bitmapinformation of the time domain resources and an identification of theuser terminal, and also comprises one or more of the following: starttime, end time and duration.
 6. The method of claim 5, wherein the timedomain resources comprise time domain resources corresponding to aHybrid Automatic Repeat Request (HARQ) process, and the bitmapinformation comprises bitmap information of the HARQ process; or, thetime domain resources comprise slot, and the bitmap informationcomprises bitmap information of slot; or, the time domain resourcescomprise subframe, and the bitmap information comprises bitmapinformation of subframe; or, the time domain resources comprise a slotgroup, and the bitmap information comprises bitmap information of theslot group; or, the time domain resources comprise a subframe group, andthe bitmap information comprises bitmap information of the subframegroup.
 7. The method of claim 1, wherein the carrying out transmissionwith the user terminal according to the transmission time domaininformation, comprises: when the first network device is a networkdevice of a second system and a second network device is a networkdevice of a first system, carrying out uplink transmission with the userterminal in a first time domain resource according to the transmissiontime domain information, wherein the first time domain resource is atime domain resource other than time domain resources in which thesecond network device and the user terminal simultaneously performuplink transmission and downlink transmission; or, when the firstnetwork device is a network device of the first system and the secondnetwork device is a network device of the second system, carrying outuplink transmission or downlink transmission with the user terminal in asecond time domain resource according to the transmission time domaininformation, wherein the second time domain resource is a time domainresource occupied by uplink transmission between the second networkdevice and the user terminal; or, when the first network device is anetwork device of the second system and the second network device is anetwork device of the first system, carrying out downlink transmissionwith the user terminal in a third time domain resource according to thetransmission time domain information, wherein the third time domainresource is a time domain resource other than a time domain resourceoccupied by uplink transmission between the second network device andthe user terminal; or, when the first network device is a network deviceof the first system and the second network device is a network device ofthe second system, carrying out uplink transmission with the userterminal in a fourth time domain resource according to the transmissiontime domain information, wherein the fourth time domain resource is atime domain resource other than a time domain resource occupied bydownlink transmission between the second network device and the userterminal.
 8. The method of claim 1, wherein before the obtainingtransmission time domain information of a user terminal experiencingterminal self-interference, the method further comprises: determiningwhether the user terminal experiences terminal self-interference; whenthe user terminal experiences terminal self-interference, determining apredicted frequency range affected by the terminal self-interference forthe terminal.
 9. The method of claim 8, wherein the determining whetherthe user terminal experiences terminal self-interference, comprises:determining whether a terminal self-interference isolation reported bythe user terminal is smaller than a preset first threshold; when theterminal self-interference isolation is smaller than the preset firstthreshold, determining that the user terminal experiences terminalself-interference; or, determining whether a downlink packet loss ratereported by the user terminal is greater than a preset second threshold;when the downlink packet loss rate is greater than the preset secondthreshold, determining that the user terminal experiences terminalself-interference; or, determining whether a downlink interference levelreported by the user terminal is greater than a preset third threshold;when the downlink interference level is greater than the preset thirdthreshold, determining that the user terminal experiences terminalself-interference; or, determining whether a received-signal sensitivityreported by the user terminal is greater than a preset fourth threshold;when the received-signal sensitivity is greater than the preset fourththreshold, determining that the user terminal experiences terminalself-interference; or, determining whether a degradation value of thereceived-signal sensitivity reported by the user terminal is greaterthan a preset fifth threshold; when the degradation value of thereceived-signal sensitivity is greater than the preset fifth threshold,determining that the user terminal experiences terminalself-interference.
 10. The method of claim 8, wherein the determining apredicted frequency range affected by the terminal self-interference forthe terminal, comprises: calculating a first predicted candidatefrequency range affected by the terminal self-interference for the userterminal in an uplink operating frequency range of the first system, andtaking a first target frequency range in the first predicted candidatefrequency range as the predicted frequency range; wherein the firsttarget frequency range is in the first predicted candidate frequencyrange and is in a frequency range of the user terminal in a downlinksystem bandwidth of the second system; or, calculating a secondpredicted candidate frequency range affected by the terminalself-interference for the user terminal in an uplink operating frequencyrange of the first system and an uplink operating frequency range of thesecond system, and taking a second target frequency range in the secondpredicted candidate frequency range as the predicted frequency range;wherein the second target frequency range is in the second predictedcandidate frequency range and is in a frequency range of the userterminal in a downlink system bandwidth of the first system.
 11. Atransmission method for terminal self-interference, which is applied toa second network device, comprising: when a user terminal experiencesterminal self-interference, obtaining transmission time domaininformation of the user terminal, the transmission time domaininformation being transmission time domain information of the userterminal after the terminal self-interference occurs at the userterminal; and sending the transmission time domain information to afirst network device, thereby enabling the first network device toperform transmission with the user terminal according to thetransmission time domain information.
 12. The method of claim 11,wherein the transmission time domain information comprises locationinformation of time domain resources; the time domain resources compriseavailable time domain resources for transmission between the firstnetwork device and the user terminal, or comprise time domain resourcesto be occupied by transmission between the second network device and theuser terminal.
 13. The method of claim 12, wherein the locationinformation comprises bitmap information of time domain resources and anidentification of the user terminal, and also comprises one or more ofthe following: start time, end time and duration, wherein the timedomain resources comprise time domain resources corresponding to aHybrid Automatic Repeat Request (HARQ) process, and the bitmapinformation comprises bitmap information of the HARQ process; or, thetime domain resources comprise slot, and the bitmap informationcomprises bitmap information of slot; or, the time domain resourcescomprise subframe, and the bitmap information comprises bitmapinformation of subframe: or, the time domain resources comprise a slotgroup, and the bitmap information comprises bitmap information of theslot group; or, the time domain resources comprise a sublime group, andthe bitmap information comprises bitmap information of the subframegroup.
 14. (canceled)
 15. The method of claim 11, wherein when the userterminal experiences terminal self-interference, before obtainingtransmission time domain information of the user terminal, the methodfurther comprises: determining whether the user terminal experiencesterminal self-interference; when the user terminal experiences terminalself-interference, determining a predicted frequency range affected bythe terminal self-interference for the terminal.
 16. A transmissionmethod for terminal self-interference, which is applied to a centralizedcontrol unit, comprising: when a user terminal experiences terminalself-interference, configuring transmission time domain information ofthe user terminal for a first network device and a second networkdevice, respectively, the transmission time domain information beingtransmission time domain information of the user terminal after theterminal self-interference occurs at the user terminal; sendingrespective transmission time domain information to the first networkdevice and the second network device, respectively, thereby enabling thefirst network device and the second network device to performtransmission with the user terminal according to their own transmissiontime domain information.
 17. The method of claim 16, wherein thetransmission time domain information of the first network devicecomprises location information of available time domain resources fortransmission between the first network device and the user terminal; thetransmission time domain information of the second network devicecomprises location information of available time domain resources fortransmission between the second network device and the user terminal.18. The method of claim 17, wherein the location information comprisesbitmap information of time domain resources and an identification of theuser terminal, and also comprises one or more of the following: starttime, end time and duration; wherein the time domain resources comprisetime domain resources corresponding to a Hybrid Automatic Repeat Request(HARQ) process, and the bitmap information comprises bitmap informationof the HARQ process; or, the time domain resources comprise slot, andthe bitmap information comprises bitmap information of slot; or the timedomain resources comprise subframe, and the bitmap information comprisesbitmap information of subframe; or the time domain resources comprise aslot group, and the bitmap information comprises bitmap information ofthe slot group; or the time domain resources comprise a subframe group,and the bitmap information comprises bitmap information of the subframegroup. 19-38. (canceled)
 39. A network device comprising: a processor, amemory, a transceiver and a user interface; wherein the processor, thememory, the transceiver and the user interface are coupled together by abus system, the processor is configured to read a program in the memoryto implement steps of the method according to claim
 1. 40. A networkdevice comprising: a processor, a memory, a transceiver and a userinterface; wherein the processor, the memory, the transceiver and theuser interface are coupled together by a bus system, the processor isconfigured to read a program in the memory to implement steps of themethod according to claim
 11. 41. A centralized control unit comprising:a processor, a memory, a transceiver and a user interface; wherein theprocessor, the memory, the transceiver and the user interface arecoupled together by a bus system, the processor is configured to read aprogram in the memory to implement steps of the method according toclaim
 16. 42-45. (canceled)